TTask and TFolder structures implemented
[u/mrichter/AliRoot.git] / TOF / AliTOFRoc.cxx
CommitLineData
68861244 1////////////////////////////////////////////////
2// Digitization class for set: TOF //
3// AliTOFRoc class //
4// Member variables //
5// fItems : number of items //
6// fSize : size //
7// fNRoc : Roc number //
8// fHeader: Roc header number //
9// fChrgRow[1024]; // adc values //
10// fTimeRow[1024]; // tdc values //
11// //
12// Member functions implemented here //
13// //
14//*-- Authors: Pierella, Seganti, Vicinanza //
15// (Bologna and Salerno University) //
16////////////////////////////////////////////////
17
18
19/**************************************************************************
20 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
21 * *
22 * Author: The ALICE Off-line Project. *
23 * Contributors are mentioned in the code where appropriate. *
24 * *
25 * Permission to use, copy, modify and distribute this software and its *
26 * documentation strictly for non-commercial purposes is hereby granted *
27 * without fee, provided that the above copyright notice appears in all *
28 * copies and that both the copyright notice and this permission notice *
29 * appear in the supporting documentation. The authors make no claims *
30 * about the suitability of this software for any purpose. It is *
31 * provided "as is" without express or implied warranty. *
32 **************************************************************************/
33
34#include <iostream.h>
35#include <assert.h>
36
37#include "AliTOFRoc.h"
38
39
40ClassImp(AliTOFRoc)
41
42//______________________________________________________________________________
43AliTOFRoc::AliTOFRoc()
44{
45//
46// Constructor of AliTOFRoc class
47// The class represents a ROC in the TARODA system
48// here we make the initialization of the member variables
49 fItems = 0;
50 fSize = 0;
51 fNRoc = 0;
52 fHeader= 0;
53// initialization of fChrgRow[1024] and fTimeRow[1024]
54 for(Int_t i=0; i < 1024; i++){
55 fChrgRow[i] = 0;
56 fTimeRow[i] = 0;
57 } // end loop
58}
59
60//______________________________________________________________________________
61AliTOFRoc::AliTOFRoc(const AliTOFRoc& tofroc)
62 : fItems(tofroc.fItems), fSize(tofroc.fSize), fNRoc(tofroc.fNRoc), fHeader(tofroc.fHeader)
63{
64//
65// copy ctor for AliTOFRoc class
66//
67 assert(tofroc.fItems >= 0); // check for number of items
68 assert(tofroc.fSize >= 0); // check for roc size
69// making a copy of adc and tdc vectors
70 for(Int_t i=0; i < 1024; i++){
71 fChrgRow[i] = tofroc.fChrgRow[i]; // coping adc values
72 fTimeRow[i] = tofroc.fTimeRow[i]; // coping tdc values
73 } // end loop
74}
75
76//______________________________________________________________________________
77AliTOFRoc& AliTOFRoc::operator=(const AliTOFRoc& tofroc)
78{
79//
80// Assignment operator for AliTOFRoc
81// (used by copy ctor of AliTOFRawSector)
82//
83 if (this !=&tofroc) { // do nothing if assigned to self
84 // setting head member data
85 SetHeadVar(tofroc.fItems,tofroc.fSize,tofroc.fNRoc,tofroc.fHeader);
86 // loop on adc and tdc values
87 for(Int_t i=0; i < 1024; i++){
88 fChrgRow[i] = tofroc.fChrgRow[i]; // coping adc values
89 fTimeRow[i] = tofroc.fTimeRow[i]; // coping tdc values
90 } // end loop
91 }
92 return *this;
93}
94
95//______________________________________________________________________________
96AliTOFRoc::~AliTOFRoc(){}
97
98//______________________________________________________________________________
99Int_t AliTOFRoc::AddItem(Int_t Fec, Int_t Tdc, Int_t Error,
100 Float_t Charge, Float_t Time)
101{
102//
103// Adds an item (i.e. the charge, the TOF and the
104// cohordinates of a hit pad) to the ROC class.
105//
106 fItems++;
107 SetCharge(fItems,Fec,Tdc,Charge);
108 SetTime (fItems,Error,Time);
109 return fItems; // return the number of current items
110}
111
112//______________________________________________________________________________
113void AliTOFRoc::SetHeadVar(Int_t items, Int_t size, Int_t nroc, UInt_t header)
114{
115//
116// set header member variables for AliTOFRoc
117//
118 fItems = items;
119 fSize = size ;
120 fNRoc = nroc ;
121 fHeader= header ;
122}
123
124//______________________________________________________________________________
125void AliTOFRoc::SetHeader()
126{
127//
128// Calculate the header line of the ROC in the raw data file
129//
130
131 fHeader = fNRoc<<28;
132 fHeader += fSize;
133}
134
135
136//______________________________________________________________________________
137void AliTOFRoc::SetTime(UInt_t Item, UInt_t Error, Float_t RealTime)
138{
139//
140// Calculate the raw data line relative to the TDC
141// output of a pad in the current ROC.
142//
143
144 UInt_t itime;
145 itime = (UInt_t)(RealTime/50.);
146 if (itime >= TMath::Power(2,24)) itime = 2^24-1;
147 Error <<= 24;
148 fTimeRow[Item]= Error+itime;
149}
150
151//______________________________________________________________________________
152void AliTOFRoc::SetCharge(UInt_t Item, UInt_t Fec, UInt_t Tdc, Float_t RealCharge)
153{
154//
155// Calculate the raw data line relative to the ADC
156// output of a pad in the current ROC.
157//
158
159 UInt_t iCharge;
160 if (fNRoc>=TMath::Power(2,4)) fNRoc = 0;
161 fNRoc <<= 28;
162 if (Fec >=TMath::Power(2,6)) Fec = 0;
163 Fec <<= 22;
164 if (Tdc >=TMath::Power(2,6)) Tdc = 0;
165 Tdc <<= 16;
166 iCharge = (UInt_t)(RealCharge/50.); // 50 ps (TDC bin value)
167 if(iCharge>=TMath::Power(2,16)) iCharge = (UInt_t)TMath::Power(2,16)-1;
168 fChrgRow[Item] = iCharge+fNRoc+Fec+Tdc;
169}
170
171//______________________________________________________________________________
172void AliTOFRoc::SetTime(UInt_t Item, UInt_t tir)
173{
174//
175// Writes the raw data line relative to the TDC
176//
177
178 fChrgRow[Item]=tir;
179}
180
181//______________________________________________________________________________
182void AliTOFRoc::SetCharge(UInt_t Item, UInt_t chr)
183{
184//
185// Writes the raw data line relative to the ADC
186//
187
188 fChrgRow[Item]=chr;
189}
190
191//______________________________________________________________________________
192Float_t AliTOFRoc::GetCharge(Int_t Item) const
193{
194//
195// Reads the effective value of the charge starting
196// from the line of the raw data
197//
198
199 UInt_t icharge = fChrgRow[Item]&0x0000ffff;
200 Float_t charge = (Float_t)icharge*50.;
201 return charge;
202}
203
204//______________________________________________________________________________
205Float_t AliTOFRoc::GetTime(Int_t Item, UInt_t& Error)
206{
207//
208// Reads the effective value of the time of flight starting
209// from the line of the raw data
210//
211
212 UInt_t itime = fTimeRow[Item]&0x00ffffff;
213 Float_t time = (Float_t)itime*50.;
214 Error = fTimeRow[Item]>>24; // the same as Error = fTimeRow[Item] / 24;
215 return time;
216}
217
218//______________________________________________________________________________
219Int_t AliTOFRoc::GetTotPad(Int_t Item) const
220{
221//
222// Reads the cohordinates of the pad starting
223// from the line of the raw data
224//
225
226 UInt_t nRoc = (fChrgRow[Item]&0xf0000000)>>28; // >> the same as / (division by)
227 UInt_t nFec = (fChrgRow[Item]&0x0fc00000)>>22;
228 UInt_t nTdc = (fChrgRow[Item]&0x003f0000)>>16;
229 UInt_t pad = nRoc*32*32+nFec*32+nTdc;
230 return pad;
231}
232
233//______________________________________________________________________________
234UInt_t AliTOFRoc::GetCheckSum()
235{
236//
237// Calculate the checksum word of the current ROC
238//
239
240 UInt_t checkSum=0;
241 for(Int_t i=0; i<fItems; i++){
242 checkSum += BitCount(GetChrgRow(i));
243 checkSum += BitCount(GetTimeRow(i));
244 }
245 return checkSum;
246}
247
248//______________________________________________________________________________
249UInt_t AliTOFRoc::BitCount(UInt_t x) const
250{
251//
252// Count the "1" bit in the current word
253//
254
255 UInt_t count=0;
256 for (count=0; x!=0; x>>=1){
257 if(x&0x00000001) count++;
258 }
259 return count;
260}
261
262//______________________________________________________________________________
263UInt_t AliTOFRoc::SetSize()
264{
265//
266// Reads the size of data from current ROC starting
267// from the header line of the raw data
268//
269
270 fSize = fHeader&0x0000ffff;
271 fItems = (fSize-4)/4;
272 return fSize;
273}
274
275
276